It is found that weight of an object is more at the poles than at the equator. So it is beneficial to purchase goods at the equator and sell them a the poles, provided:

Question

Philoid · Accepted Answer

Since weight of object is more at poles than at the equator, so it is beneficial to purchase goods at equator and sell at poles provided a spring balance is used as a spring balance measures the weight of an object whereas equal beam balance measures mass and mass is constant and does not change from place to place.

Hence option B is correct.